YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 10000 Tons/Month |
| Delivery Time | 5 - 60 Days |
| Packaging Details | Ply-Wooden Case & Woven Bag |
| Material | TP347H, 1.4961, SUS347H |
| Standard | ASTM A213 , ASME SA213, GOST 9941, JIS 3463 |
| Type | Coil, Straight, U bend |
| NDT | UT, ET, HT, PMI |
| Size | OD : 6mm~ 50.8mm , WT: 0.5mm~ 15mm, L: Max:34m/pc |
| Application | Heat Exchanger, Cooling , Heating, Condenser, Tube Bundle |
| Brand Name | YUHONG |
| Model Number | Seamless Tube |
| Certification | ABS, DNV-GL, LR, BV, CCS, KR, ASME, TUV, SGS, BV, IEI, IBR, ISO9001, ISO 14001, ISO 18001 |
| Place of Origin | China, Korea |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 10000 Tons/Month |
| Delivery Time | 5 - 60 Days | Packaging Details | Ply-Wooden Case & Woven Bag |
| Material | TP347H, 1.4961, SUS347H | Standard | ASTM A213 , ASME SA213, GOST 9941, JIS 3463 |
| Type | Coil, Straight, U bend | NDT | UT, ET, HT, PMI |
| Size | OD : 6mm~ 50.8mm , WT: 0.5mm~ 15mm, L: Max:34m/pc | Application | Heat Exchanger, Cooling , Heating, Condenser, Tube Bundle |
| Brand Name | YUHONG | Model Number | Seamless Tube |
| Certification | ABS, DNV-GL, LR, BV, CCS, KR, ASME, TUV, SGS, BV, IEI, IBR, ISO9001, ISO 14001, ISO 18001 | Place of Origin | China, Korea |
| High Light | Stainless Steel Heat Exchanger Tube ，Stainless Steel Heat Exchanger Tube ASME SA213 ，TP347H Seamless Tube | ||
ASME SA213 TP347H Stainless Steel Seamless Tube For Power Plant Heat Exchanger Application
Grade TP347H is a high-carbon austenitic stainless steel designed for high-temperature applications, offering excellent resistance to intergranular corrosion and oxidation. Its stabilization with niobium enhances its mechanical properties, making it suitable for demanding environments in power generation, petrochemical, and chemical processing industries.
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| TP347 | 1.4550 | S34700 | SUS 347 | 08X18H12M | X6CrNiNb18-10 |
| TP347H | 1.4961 | S34709 | SUS 347H | 03Х17Н14М3 | X6CrNiNb18-12 |
ASTM SA213:Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, And Heat Exchanger tubes;
ASTM A213: Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, And Heat Exchanger tubes;
ASTM A262: Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels.
ASTM A941: Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys.
ASTM A1016: Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes.
ASTM E112: Test Methods for Determining Average Grain Size.
Chemical Composition:
| Grade | C | Mn | Si | P | S | Cr | Ni | Nb | Fe |
| TP347H | 0.04–0.10% | ≤2.00% | ≤0.75% | ≤ 0.045% | ≤0.030% | 17.00-19.00% | 9.00-13.00% | 10 x C minimum | Balance |
Mechanical Properties:
| Grade | Ultimate Tensile Strength | Yield Strength | Elongation | Hardness |
| TP347H | 515 MPa (75,000 psi) minimum | 205 MPa (30,000 psi) minimum | 35% minimum in 50 mm | ≤ 95 HRB |
Key Features:
High-Temperature Stability:
Enhanced by the addition of niobium, which improves creep strength and resistance to stress rupture.
Corrosion Resistance:
Excellent resistance to intergranular corrosion, particularly in high-temperature environments.
Oxidation Resistance:
Performs well in oxidizing conditions up to 1500°F (816°C).
Weldability:
Good weldability with minimal risk of sensitization due to the stabilization by niobium.
Applications:
1. Power Generation
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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